I'm looking for a new universal iem for $300 max, but I'm not sure what to get. I've tried the Rockit R-50 and liked the instrument separation and details, but it there wasn't enough bass and it sounded lifeless. I also didn't really like the Vsonic GR07. I'm looking at the RE-400, but it doesn't seem like it has enough bass depth or quantity.
Are there any universal iems with these traits for less than $300?
-Forward, airy, detailed mids
-Airy sound with good instrument separation (Polite sound, not thick or muddy)
-Good subbass depth and quantity